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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:41 +0000 |
commit | 4f9fe856a25ab29345b90e7725509e9ee38a37be (patch) | |
tree | e4ffd8a9374cae7b21f7cbfb352927e0e074aff6 /vendor/gimli-0.26.2/src/read/lists.rs | |
parent | Adding upstream version 1.68.2+dfsg1. (diff) | |
download | rustc-5cd5bd4daf55da04d2c8e7c06c3067a027cfbfc2.tar.xz rustc-5cd5bd4daf55da04d2c8e7c06c3067a027cfbfc2.zip |
Adding upstream version 1.69.0+dfsg1.upstream/1.69.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | vendor/gimli-0.26.2/src/read/lists.rs | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/vendor/gimli-0.26.2/src/read/lists.rs b/vendor/gimli-0.26.2/src/read/lists.rs new file mode 100644 index 000000000..898a757d3 --- /dev/null +++ b/vendor/gimli-0.26.2/src/read/lists.rs @@ -0,0 +1,68 @@ +use crate::common::{Encoding, Format}; +use crate::read::{Error, Reader, Result}; + +#[derive(Debug, Clone, Copy)] +pub(crate) struct ListsHeader { + encoding: Encoding, + #[allow(dead_code)] + offset_entry_count: u32, +} + +impl Default for ListsHeader { + fn default() -> Self { + ListsHeader { + encoding: Encoding { + format: Format::Dwarf32, + version: 5, + address_size: 0, + }, + offset_entry_count: 0, + } + } +} + +impl ListsHeader { + /// Return the serialized size of the table header. + #[allow(dead_code)] + #[inline] + fn size(self) -> u8 { + // initial_length + version + address_size + segment_selector_size + offset_entry_count + ListsHeader::size_for_encoding(self.encoding) + } + + /// Return the serialized size of the table header. + #[inline] + pub(crate) fn size_for_encoding(encoding: Encoding) -> u8 { + // initial_length + version + address_size + segment_selector_size + offset_entry_count + encoding.format.initial_length_size() + 2 + 1 + 1 + 4 + } +} + +// TODO: add an iterator over headers in the appropriate sections section +#[allow(dead_code)] +fn parse_header<R: Reader>(input: &mut R) -> Result<ListsHeader> { + let (length, format) = input.read_initial_length()?; + input.truncate(length)?; + + let version = input.read_u16()?; + if version != 5 { + return Err(Error::UnknownVersion(u64::from(version))); + } + + let address_size = input.read_u8()?; + let segment_selector_size = input.read_u8()?; + if segment_selector_size != 0 { + return Err(Error::UnsupportedSegmentSize); + } + let offset_entry_count = input.read_u32()?; + + let encoding = Encoding { + format, + version, + address_size, + }; + Ok(ListsHeader { + encoding, + offset_entry_count, + }) +} |